diff --git a/Cargo.lock b/Cargo.lock
index 26ea5d2..5d0a6be 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -49,14 +49,23 @@ dependencies = [
 
 [[package]]
 name = "cortex-m-rt"
-version = "0.6.12"
+version = "0.6.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "00d518da72bba39496024b62607c1d8e37bcece44b2536664f1132a73a499a28"
+checksum = "b6d8353767db816419630a76d5f1ad5b09610d22b67ceb59647df6a8abc667f8"
 dependencies = [
- "cortex-m-rt-macros",
+ "cortex-m-rt-macros 0.1.8",
  "r0",
 ]
 
+[[package]]
+name = "cortex-m-rt"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "069533b58e25b635fac881eb6556616bd8f83a3e0ffe2b4b9619289ed14d465e"
+dependencies = [
+ "cortex-m-rt-macros 0.7.0",
+]
+
 [[package]]
 name = "cortex-m-rt-macros"
 version = "0.1.8"
@@ -68,6 +77,17 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "cortex-m-rt-macros"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0f6f3e36f203cfedbc78b357fb28730aa2c6dc1ab060ee5c2405e843988d3c7"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "embedded-hal"
 version = "0.2.4"
@@ -104,7 +124,7 @@ checksum = "e29878bd53aebe9901eb08c5c694fd1eba96eeb6a0a1a028ad1a5ded5f381ac0"
 dependencies = [
  "bare-metal",
  "cortex-m",
- "cortex-m-rt",
+ "cortex-m-rt 0.6.14",
  "vcell",
 ]
 
@@ -114,7 +134,7 @@ version = "0.1.0"
 dependencies = [
  "bare-metal",
  "cortex-m",
- "cortex-m-rt",
+ "cortex-m-rt 0.7.0",
  "embedded-hal",
  "ht32f5xxxx",
  "nb",
diff --git a/Cargo.toml b/Cargo.toml
index ff8ae2e..7c8fa75 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -19,7 +19,7 @@ targets = ["thumbv6m-none-eabi"]
 [dependencies]
 embedded-hal = "0.2.4"
 cortex-m = "0.6.3"
-cortex-m-rt = "0.6.12"
+cortex-m-rt = "0.7.0"
 nb = "0.1.2"
 ht32f5xxxx = "0.1.1"